Jews and Old Believers are two communities that played an important role in Russian history, and at the same time experienced repressive pressure from both the Russian Empire and the Soviet Union. The book by Mikhail Kizilov and Grigory Bondarenko is one of the first attempts at a comprehensive analysis of interfaith and intercultural dialogue between these two groups in the 18th-21st centuries. How did the Jews pass into the Old Believers? How were mixed marriages performed? How did the Old Believers help Jews escape during the Holocaust? And what were the conflicts between the representatives of these two communities?